Regenerate Android.bp for external rust projects
* Rust projects have both Android.bp and Cargo.toml.
* When called from update_packages.sh,
development/scripts/cargo2android.py is used.
* When regen_bp.sh is called alone,
use cargo2android.py in PATH.
* Append an error note to the new .bp file,
if the old one is known to have manual changes.
Manual edit/test is required.
Bug: 168167364
Test: tools/external_updater/updater.sh update rust/crates/<some_pkg>
Change-Id: I9c80daae89a207f25e8ca541425acaefc85c87ab
diff --git a/regen_bp.sh b/regen_bp.sh
new file mode 100755
index 0000000..67b092b
--- /dev/null
+++ b/regen_bp.sh
@@ -0,0 +1,68 @@
+#!/bin/bash
+#
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script is used by external_updater to replace a package. Don't
+# invoke directly.
+
+set -e
+
+# Call this in two ways:
+# (1) in a .../external/* rust directory with .bp and Cargo.toml,
+# development/scripts/cargo2android.py must be in PATH
+# (2) in a tmp new directory with .bp and Cargo.toml,
+# and $1 equals to the rust Android source tree root,
+# and $2 equals to the rust sub-directory path name under external.
+if [ "$1" == "" ]; then
+ external_dir=`pwd`
+ C2A=`which cargo2android.py`
+ if [ "$C2A" == "" ]; then
+ echo "ERROR: cannot find cargo2android.py in PATH"
+ exit 1
+ fi
+else
+ external_dir="$2" # e.g. rust/crates/bytes
+ C2A="$1/development/scripts/cargo2android.py"
+ if [ ! -f $C2A ]; then
+ echo "ERROR: cannot find $C2A"
+ exit 1
+ fi
+fi
+
+# Save Cargo.lock if it existed before this update.
+if [ -f Cargo.lock ]; then
+ mv Cargo.lock Cargo.lock.saved
+fi
+
+LINE1=`head -1 Android.bp`
+FLAGS=`echo $LINE1 | sed -e 's:^.*cargo2android.py ::;s:\.$::'`
+CMD="$C2A $FLAGS"
+echo "Updating Android.bp: $CMD"
+$CMD
+rm -rf target.tmp cargo.out Cargo.lock
+
+# Restore Cargo.lock if it existed before this update.
+if [ -f Cargo.lock.saved ]; then
+ mv Cargo.lock.saved Cargo.lock
+fi
+
+# Some .bp files have manual changes.
+# Add a note to force a manual edit.
+case $external_dir in
+ */libloading|*/libsqlite3-sys|*/serde|*/unicode-xid)
+ echo "FIXME: Copy manual changes from old version!" >> Android.bp
+esac
+
+exit 0
